How Long Does FreeStyle Libre Really Last?

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This article provides general information about FreeStyle Libre sensor duration and is not medical advice. Always consult your healthcare provider about your specific diabetes management needs.

Wondering exactly how long your FreeStyle Libre sensor will last? You’re not alone. Many seniors using continuous glucose monitoring (CGM) want to know the precise freestyle libre sensor duration to better plan their diabetes management routine.

The Official FreeStyle Libre Sensor Duration

The FreeStyle Libre sensor is FDA-approved to last exactly 14 days (or 336 hours) from activation. After this period, your sensor will automatically stop working – no exceptions.

🔑 Key Point: Your sensor starts its 14-day countdown the moment you activate it with your reader or smartphone, not when you first apply it to your arm.

Understanding Your Sensor’s Timeline

Let’s break down what happens during your sensor’s two-week journey:

Day 1: After application, wait 1 hour for sensor warm-up
Days 1-14: Regular glucose readings every minute
Day 14: Final countdown (sensor will show remaining hours)
End of Day 14: Sensor stops working automatically

💡 Pro Tip: Set a reminder on your calendar or phone for Day 13 to ensure you have a new sensor ready.

Medicare Coverage and Sensor Duration

Medicare typically covers one sensor every 14 days, matching the freestyle libre sensor duration. Your supplier should time deliveries accordingly.

For Medicare beneficiaries, coverage includes:

26 sensors per year (one every two weeks)
One reader device every 5 years
All necessary supplies for proper use

Common Questions About Sensor Duration

Can I extend my sensor’s life?

No. The 14-day freestyle libre sensor duration is fixed and attempting to extend it could be dangerous and void your warranty.

What if my sensor falls off early?

Contact Abbott’s Customer Service at 1-855-632-8658 for a replacement sensor if yours falls off before the 14-day period ends.

Getting Help with Your Sensor

Need assistance? You have several options:

Call our Senior CGM Support team: 888-649-5705
Ask a family member to help set reminder alarms
Watch our senior-friendly video tutorials
Request a printed guide by mail

Remember: Your health and safety come first. Never try to extend your sensor’s life beyond its intended 14-day duration.

Last updated: January 2025

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